Allow floats in the slider component and update docs

src/scripts/components/slider.js

@@ -29,6 +29,10 @@ module.exports = {
       $valuePad.set('innerHTML', value);
     }
 
+    var step = self.$manipulatorTarget.get('step');
+    step = step.toString(10).split('.')[1];
+    self.precision = step ? step.length : 0;
+
     self.on('change', setValueDisplay);
     setValueDisplay();
 

src/scripts/lib/clay-config.js

@@ -158,7 +158,13 @@ function ClayConfig(settings, config, $rootContainer, meta) {
   self.serialize = function() {
     _checkBuilt('serialize');
     _.eachObj(_itemsByAppKey, function(appKey, item) {
-      _settings[appKey] = item.get();
+      _settings[appKey] = {
+        value: item.get()
+      };
+
+      if (item.precision) {
+        _settings[appKey].precision = item.precision;
+      }
     });
     return _settings;
   };

src/scripts/lib/utils.js

@@ -17,54 +17,3 @@ module.exports.updateProperties = function(obj, descriptor) {
     Object.defineProperty(obj, prop, descriptor);
   });
 };
-
-/**
- * Converts the val into a type compatible with Pebble.sendAppMessage().
- *  - Strings will be returned without modification
- *  - Numbers will be returned without modification
- *  - Booleans will be converted to a 0 or 1
- *  - Arrays that contain strings will be split with a zero.
- *    eg: ['one', 'two'] becomes ['one', 0, 'two', 0]
- *  - Arrays that contain numbers will be returned without modification
- *    eg: [1, 2] becomes [1, 2]
- *  - Arrays that contain booleans will be converted to a 0 or 1
- *    eg: [true, false] becomes [1, 0]
- *  - Arrays must be single dimensional
- * @param {number|string|boolean|Array} val
- * @returns {number|string|Array}
- */
-module.exports.prepareForAppMessage = function(val) {
-  var result;
-
-  if (typeof val === 'boolean') {
-    result = val ? 1 : 0;
-  } else if (Array.isArray(val)) {
-    result = [];
-    val.forEach(function(item) {
-      var itemConverted = module.exports.prepareForAppMessage(item);
-      result.push(itemConverted);
-      if (typeof itemConverted === 'string') {
-        result.push(0);
-      }
-    });
-  } else {
-    result = val;
-  }
-
-  return result;
-};
-
-/**
- * Converts a Clay settings dict into one that is compatible with
- * Pebble.sendAppMessage();
- * @see {prepareForAppMessage}
- * @param {Object} settings
- * @returns {{}}
- */
-module.exports.prepareSettingsForAppMessage = function(settings) {
-  var result = {};
-  Object.keys(settings).forEach(function(key) {
-    result[key] = module.exports.prepareForAppMessage(settings[key]);
-  });
-  return result;
-};